The National Federation of Subpostmasters is today expected to present a petition of four million signatures to Downing Street in an effort to save the UK's rural post offices.

The petition calls on the government to reverse its decision to withdraw the Post Office Card Account and to safeguard the future of the network.

Thousands of subpostmasters and their customers are also expected to gather at a rally in London to lobby their concerns over the future of rural post offices.